Power inverter



FIG. 1 is a front, right and top perspective view of a power inverter showing my new design;

FIG. 2 is a rear, left and bottom perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a right view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines shown illustrate portions of the power inverter that form no part of the claimed design. 

CLAIM The ornamental design for power inverter, as shown and described. 